Re: [Amc-list] My Two Cents on Hydrogen etc

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: Wrambler242@xxxxxxxxxxx
" 
" The Glycerine burns too.
" Or at least is evaporated, I don't know enough about it's properties
" to be sure, but A Bio diesel guy just adds it to his wood stove fire.
"    Other similar uses are allready out there for it.

it's an alcohol, related to glycols too.  like ethanol, propylene
glycol and glycerine are edible.  one of glycerine's uses is as a
sweetener.

i've heard you can get heaters designed to burn glycerine but it seems
a waste somehow.  it ought to be a good chemical feedstock or
something.

" --
" Mark Price
" 
"  -------------- Original message ----------------------
" From: Matt Haas <mhaas@xxxxxxx>
" > On 6/16/2008 5:40 PM, Sandwich Maker spouted this sage advice:
" > <snip>
" > > " I have an enviro friend who advocated ethanol twenty years ago.  Now
" > > " that it's here, he complains about it.
" > > 
" > > he's finally seeing a downside that wasn't apparent when ethanol was
" > > just a potential niche fuel.  a similar now-hidden downside with
" > > biodiesel is what to do with the massive glycerine byproduct amounts.
" > > uses will be found for it; uses -must- be found for it.
" > </snip>
" > 
" > Take it to DC. It should be easy to find plenty of lye there to make it. 
" > Glycern + Lye = soap (okay, you need to apply heat as well but there 
" > should be plenty of hot air and if not, there's surely enough BS to burn 
" > to make heat).

actually, fat + lye = soap + glycerine, in the presence of water.

one of the ways of making biodiesel uses lye, and your alcohol and veg
oil have to be as dry as possible or you'll get soap instead of fuel.

step 1: ethanol + lye = sodium ethoxide
step 2: sodium ethoxide + triglyceride = biodiesel + glycerine + lye
yes, the lye doesn't get consumed; it's a catalyst.
[nb. afaik all bio fats and oils are triglycerides; they differ in the
'tri' part]

there are numerous and varied uses for glycerine now, but if we went
into biodiesel production in a major way the glycerine byproduct would
flood the existing market some 100x over.  we're talking a gallon or
more every time a vehicle fills up.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought
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